313234256665 has 12 divisors (see below), whose sum is σ = 413158574052. Its totient is φ = 227806731680.

The previous prime is 313234256663. The next prime is 313234256711. The reversal of 313234256665 is 566652432313.

It can be written as a sum of positive squares in 2 ways, for example, as 207619656409 + 105614600256 = 455653^2 + 324984^2 .

It is not a de Polignac number, because 313234256665 - 2¹ = 313234256663 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313234256663) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 258870682 + ... + 258871891.

It is an arithmetic number, because the mean of its divisors is an integer number (34429881171).

Almost surely, 2^313234256665 is an apocalyptic number.

It is an amenable number.

313234256665 is a deficient number, since it is larger than the sum of its proper divisors (99924317387).

313234256665 is a wasteful number, since it uses less digits than its factorization.

313234256665 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 517742600 (or 517742589 counting only the distinct ones).

The product of its digits is 2332800, while the sum is 46.

Adding to 313234256665 its reverse (566652432313), we get a palindrome (879886688978).

The spelling of 313234256665 in words is "three hundred thirteen billion, two hundred thirty-four million, two hundred fifty-six thousand, six hundred sixty-five".